Intake Manifold: Installation

To complete installation, observe the following assembly tips, and reverse the removal procedures:

• Clean the cylinder block, heads and intake manifold sealing surface of all oil with a suitable solvent.
• Apply sealer GM P/N (12345493) or equivalent to the ends of the manifold seals.
• Clean the intake manifold bolts and bolt holes of adhesive compound.
• Apply thread lock compound GM P/N (12345493) or equivalent to the intake manifold bolt threads before assembly.
• Tighten the intake manifold bolts TWICE to 11 Ft. Lbs. (15 N.m) following the sequence in Fig 1 .

Fig 1: Lower Intake Manifold Bolt Tightening Sequence

Courtesy of GENERAL MOTORS CORP.